<template>
  <div class="login-container">
    <el-form
      ref="loginForm"
      :model="loginForm"
      :rules="loginRules"
      class="login-form"
      auto-complete="on"
      label-position="left"
    >
      <div class="title-container">
        <h3 class="title">
          <img src="@/assets/common/login-logo.png" alt="" />
        </h3>
      </div>
      <!-- auto-complete="off" 是自动补全的属性  on是开启 off是关闭 -->
      <!--
          element-ui 表单组件使用 四要素
          1. el-form :model="data中定义的对象"
          2. el-input 需要双向绑定  v-model="data表单对象.字段"
          3. 表单规则要生效  el-form :rules="data中定义的校验规则(对象)"
          4. el-form-item 必须绑定prop属性 值是校验规则中的某个键

       -->
      <el-form-item prop="mobile">
        <span class="svg-container">
          <svg-icon icon-class="user" />
        </span>
        <el-input
          ref="mobile"
          v-model.number="loginForm.mobile"
          placeholder="请输入手机号"
          name="mobile"
          type="text"
          tabindex="1"
          auto-complete="off"
        />
      </el-form-item>

      <el-form-item prop="password">
        <span class="svg-container">
          <svg-icon icon-class="password" />
        </span>
        <el-input
          :key="passwordType"
          ref="password"
          v-model="loginForm.password"
          :type="passwordType"
          placeholder="请输入密码"
          name="password"
          tabindex="2"
          auto-complete="off"
          @keyup.enter.native="handleLogin"
        />
        <span class="show-pwd" @click="showPwd">
          <svg-icon
            :icon-class="passwordType === 'password' ? 'eye' : 'eye-open'"
          />
        </span>
      </el-form-item>

      <el-button
        class="loginBtn"
        :loading="loading"
        type="primary"
        style="width:100%;margin-bottom:30px;"
        @click.native.prevent="handleLogin"
        >登录</el-button
      >

      <div class="tips">
        <span style="margin-right:20px;">账号: 13800000002</span>
        <span> 密码: 123456{{ $store.getters.token }}</span>
      </div>
    </el-form>
  </div>
</template>

<script>
import { validUsername } from "@/utils/validate";
// import { reqLogin } from "@/api/user";
import { mapMutations } from "vuex";

export default {
  name: "Login",
  data() {
    const validateUsername = (rule, value, callback) => {
      if (!validUsername(value)) {
        callback(new Error("Please enter the correct user name"));
      } else {
        callback();
      }
    };
    const validatePassword = (rule, value, callback) => {
      if (value.length < 6) {
        callback(new Error("The password can not be less than 6 digits"));
      } else {
        callback();
      }
    };
    // value是输入框输入的内容
    // cb 是一个回到函数 cb()这种表示校验通过  cb(new Error('信息')) 表示校验失败
    const checkName = (rule, value, cb) => {
      // console.log(typeof value)
      // if (typeof value !== 'number') {
      //   cb(new Error('请输入数字'))
      // } else {
      //   cb()
      // }
      if (/^1[3-9]\d{9}$/.test(value)) {
        cb();
      } else {
        cb(new Error("手机号不合法"));
      }
    };
    return {
      loginForm: {
        mobile: "13800000002",
        password: "123456"
      },
      loginRules: {
        mobile: [
          // 非空校验
          {
            required: true,
            message: "用户名不能为空",
            trigger: ["blur", "change"]
          },
          // 长度校验
          // { min: 3, max: 8, message: '长度在 3 到 8 个字符', trigger: ['blur', 'change'] },
          // validator 自定义校验规则
          // { validator: checkName, trigger: ['blur', 'change'] },
          // 如果要做一些正则的自定义校验规则， patern属性可以来完成
          {
            pattern: /^1[3-9]\d{9}$/,
            message: "手机号必须是11位",
            trigger: ["blur", "change"]
          }
        ],
        // 密码不能为空  6-16位字符
        password: [
          {
            required: true,
            message: "密码不能为空",
            trigger: ["blur", "change"]
          },
          {
            min: 6,
            max: 16,
            message: "长度在 6 到 16 个字符",
            trigger: ["blur", "change"]
          }
        ]
      },
      loading: false,
      passwordType: "password",
      redirect: undefined
    };
  },
  watch: {
    $route: {
      handler: function(route) {
        this.redirect = route.query && route.query.redirect;
      },
      immediate: true
    }
  },
  methods: {
    ...mapMutations("user", ["setToken"]),
    showPwd() {
      if (this.passwordType === "password") {
        this.passwordType = "";
      } else {
        this.passwordType = "password";
      }
      this.$nextTick(() => {
        this.$refs.password.focus();
      });
    },
    handleLogin() {
      this.$refs.loginForm.validate(async valid => {
        this.loading = true;
        if (valid) {
          // this.$store.dispatch('user/login', this.loginForm).then(() => {
          //   this.$router.push({ path: this.redirect || '/' })
          //   this.loading = false
          // }).catch(() => {
          //   this.loading = false
          // })
          try {
            await this.$store.dispatch("user/login", this.loginForm);
            this.$router.push("/");
            this.loading = false;
          } catch (error) {
            console.log(error);
            this.loading = false;
          }
        } else {
          console.log("error submit!!");
          return false;
        }
        // if (valid) {
        //   const res = await reqLogin(this.loginForm);
        //   console.log(res);
        //   this.setToken(res.data.data);
        //   if (res.data.success) {
        //     this.$message.success('登录成功')
        //     this.$router.push("/");
        //   } else {
        //     this.$message.error('登录失败')
        //   }
        // }
      });
    }
  }
};
</script>

<style lang="scss">
/* 修复input 背景不协调 和光标变色 */
/* Detail see https://github.com/PanJiaChen/vue-element-admin/pull/927 */

$bg: #283443;
$light_gray: blue;
$cursor: #fff;

@supports (-webkit-mask: none) and (not (cater-color: $cursor)) {
  .login-container .el-input input {
    color: $cursor;
  }
}

/* reset element-ui css */
.login-container {
  .el-input {
    display: inline-block;
    height: 47px;
    width: 85%;

    input {
      background: transparent;
      border: 0px;
      -webkit-appearance: none;
      border-radius: 0px;
      padding: 12px 5px 12px 15px;
      color: $light_gray;
      height: 47px;
      caret-color: $cursor;

      &:-webkit-autofill {
        box-shadow: 0 0 0px 1000px $bg inset !important;
        -webkit-text-fill-color: $cursor !important;
      }
    }
  }

  .el-form-item {
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(255, 255, 255, 0.9); // 输入登录表单的背景色
    border-radius: 5px;
    color: #454545;
  }
  .el-form-item__error {
    color: #fff;
    font-size: 14px;
  }
  //  登录按钮样式
  .loginBtn {
    background: #407ffe;
    height: 64px;
    line-height: 32px;
    font-size: 24px;
  }
}
</style>

<style lang="scss" scoped>
$bg: #2d3a4b;
$dark_gray: #889aa4;
$light_gray: #eee;

.login-container {
  min-height: 100%;
  width: 100%;
  background-color: $bg;
  overflow: hidden;
  background-image: url("~@/assets/common/login.jpg"); // 设置背景图片
  background-position: center; // 将图片位置设置为充满整个屏幕

  .login-form {
    position: relative;
    width: 520px;
    max-width: 100%;
    padding: 160px 35px 0;
    margin: 0 auto;
    overflow: hidden;
  }

  .tips {
    font-size: 14px;
    color: #fff;
    margin-bottom: 10px;

    span {
      &:first-of-type {
        margin-right: 16px;
      }
    }
  }

  .svg-container {
    padding: 6px 5px 6px 15px;
    color: $dark_gray;
    vertical-align: middle;
    width: 30px;
    display: inline-block;
  }

  .title-container {
    position: relative;

    .title {
      font-size: 26px;
      color: $light_gray;
      margin: 0px auto 40px auto;
      text-align: center;
      font-weight: bold;
    }
  }

  .show-pwd {
    position: absolute;
    right: 10px;
    top: 7px;
    font-size: 16px;
    color: $dark_gray;
    cursor: pointer;
    user-select: none;
  }
}
</style>

<style lang="scss" scoped>
.box {
  span {
    color: green;
  }
}
//  sass和stylus的语法
// .box
//   span
//     color: green
</style>
